protected override void WndProc(ref Message m)
{
if (m.Msg == WIN32.WM_LBUTTONDOWN ||
m.Msg == WIN32.WM_RBUTTONDOWN ||
m.Msg == WIN32.WM_LBUTTONDBLCLK ||
m.Msg == WIN32.WM_MOUSELEAVE ||
m.Msg == WIN32.WM_MOUSEMOVE)
{
WIN32.PostMessage(this.Parent.Handle, (uint)m.Msg, m.WParam, m.LParam);
}
else if (m.Msg == WIN32.WM_LBUTTONUP)
{
this.Parent.Invalidate();
}
base.WndProc(ref m);
}
/* Will clean this up later doing something like this
* enum CaptureOptions : long
* {
* PRF_CHECKVISIBLE= 0x00000001L,
* PRF_NONCLIENT = 0x00000002L,
* PRF_CLIENT = 0x00000004L,
* PRF_ERASEBKGND = 0x00000008L,
* PRF_CHILDREN = 0x00000010L,
* PRF_OWNED = 0x00000020L
* }
*/
public static bool CaptureWindow(System.Windows.Forms.Control control,
ref System.Drawing.Bitmap bitmap)
{
//This function captures the contents of a window or control
Graphics g2 = Graphics.FromImage(bitmap);
//PRF_CHILDREN // PRF_NONCLIENT
int meint = (int)(PRF_CLIENT | PRF_ERASEBKGND); //| PRF_OWNED ); // );
System.IntPtr meptr = new System.IntPtr(meint);
System.IntPtr hdc = g2.GetHdc();
WIN32.SendMessage(control.Handle, WIN32.WM_PRINT, hdc, meptr);
g2.ReleaseHdc(hdc);
g2.Dispose();
return(true);
}
private Point findCaret()
{
Point pointCaret = new Point(0);
int i_char_loc = this.SelectionStart;
IntPtr pi_char_loc = new IntPtr(i_char_loc);
int i_point = WIN32.SendMessage(this.Handle, WIN32.EM_POSFROMCHAR, pi_char_loc, IntPtr.Zero);
pointCaret = new Point(i_point);
if (i_char_loc == 0)
{
pointCaret = new Point(0);
}
else if (i_char_loc >= this.Text.Length)
{
pi_char_loc = new IntPtr(i_char_loc - 1);
i_point = WIN32.SendMessage(this.Handle, WIN32.EM_POSFROMCHAR, pi_char_loc, IntPtr.Zero);
pointCaret = new Point(i_point);
Graphics g = this.CreateGraphics();
String t1 = this.Text.Substring(this.Text.Length - 1, 1) + "X";
SizeF sizet1 = g.MeasureString(t1, this.Font);
SizeF sizex = g.MeasureString("X", this.Font);
g.Dispose();
int xoffset = (int)(sizet1.Width - sizex.Width);
pointCaret.X = pointCaret.X + xoffset;
if (i_char_loc == this.Text.Length)
{
String slast = this.Text.Substring(Text.Length - 1, 1);
if (slast == "\n")
{
pointCaret.X = 1;
pointCaret.Y = pointCaret.Y + myFontHeight;
}
}
}
return(pointCaret);
}
private void GetBitmaps()
{
if (myBitmap == null ||
myAlphaBitmap == null ||
myBitmap.Width != Width ||
myBitmap.Height != Height ||
myAlphaBitmap.Width != Width ||
myAlphaBitmap.Height != Height)
{
myBitmap = null;
myAlphaBitmap = null;
}
if (myBitmap == null)
{
myBitmap = new Bitmap(this.ClientRectangle.Width, this.ClientRectangle.Height);//(Width,Height);
myUpToDate = false;
}
if (!myUpToDate)
{
this.SetStyle(ControlStyles.UserPaint, false);
WIN32.CaptureWindow(this, ref myBitmap);
this.SetStyle(ControlStyles.UserPaint, true);
this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
this.BackColor = Color.FromArgb(myBackAlpha, myBackColor);
}
Rectangle r2 = new Rectangle(0, 0, this.ClientRectangle.Width, this.ClientRectangle.Height);
ImageAttributes tempImageAttr = new ImageAttributes();
ColorMap[] tempColorMap = new ColorMap[1];
tempColorMap[0] = new ColorMap();
tempColorMap[0].OldColor = Color.FromArgb(255, myBackColor);
tempColorMap[0].NewColor = Color.FromArgb(myBackAlpha, myBackColor);
tempImageAttr.SetRemapTable(tempColorMap);
if (myAlphaBitmap != null)
{
myAlphaBitmap.Dispose();
}
myAlphaBitmap = new Bitmap(this.ClientRectangle.Width, this.ClientRectangle.Height);
Graphics tempGraphics1 = Graphics.FromImage(myAlphaBitmap);
//tempGraphics1.DrawImage(myBitmap, r2, 0, 0, this.ClientRectangle.Width, this.ClientRectangle.Height, GraphicsUnit.Pixel, tempImageAttr);
tempGraphics1.DrawImage(myBitmap, r2, 0, 0, this.ClientRectangle.Width, this.ClientRectangle.Height, GraphicsUnit.Pixel, tempImageAttr);
tempGraphics1.Dispose();
//if (this.Focused && (this.SelectionLength == 0))
//{
// Graphics tempGraphics2 = Graphics.FromImage(myAlphaBitmap);
// if (myCaretState)
// {
// Point caret = this.findCaret();
// Pen p = new Pen(this.ForeColor, 3);
// tempGraphics2.DrawLine(p, caret.X, caret.Y + 0, caret.X, caret.Y + myFontHeight);
// tempGraphics2.Dispose();
// }
//}
}
/// <summary>
/// 显示和消失动画
/// </summary>
private void animate()
{
if (!timer1.Enabled)
{
if (backImg != null)
{
backImg.Dispose();
}
backImg = null;
backImg = new Bitmap(base.ClientRectangle.Width, base.ClientRectangle.Height);
base.DrawToBitmap(backImg, base.ClientRectangle);
if (alphaback != null)
{
alphaback.Dispose();
}
alphaback = null;
alphaback = new Bitmap(base.ClientRectangle.Width, base.ClientRectangle.Height);
if (base.BackgroundImage != null)
{
backgroundTemp = (Bitmap)base.BackgroundImage;
base.BackgroundImage = null;
}
if (base.BackColor != Color.Transparent)
{
backcolorTemp = base.BackColor;
base.BackColor = Color.Transparent;
}
WIN32.CaptureWindow(this, ref alphaback);
if (picbox != null)
{
picbox.Dispose();
}
picbox = null;
picbox = new uPictureBox();
this.Controls.Add(picbox);
picbox.Dock = DockStyle.Fill;
if (!shown)
{
picbox.Image = alphaback;
}
else
{
picbox.Image = backImg;
}
picbox.BringToFront();
base.Visible = true;
if (!shown)
{
if (gbackImg != null)
{
gbackImg.Dispose();
}
gbackImg = null;
gbackImg = Graphics.FromImage(alphaback);
gbackImg.SmoothingMode = SmoothingMode.HighQuality;
}
else
{
if (gbackImg != null)
{
gbackImg.Dispose();
}
gbackImg = null;
gbackImg = Graphics.FromImage(backImg);
gbackImg.SmoothingMode = SmoothingMode.HighQuality;
}
isfirst = true;
this.timer1.Start();
}
}
